stinson



March 24. 1925. 1,531,041

H. s. STINSON ADDING MACHINE Filed July 23, 1924 5 Sheets-Sheet 1 INVENTOR March 24, 1925. 1,531,041

H. s. STINSON ADDING MACHINE Filed July 23, 1924 5 Sheets-Sheet 2 IDQQO INVENTOR March 24. 1925. 1,531,041

H. s. STINSON ADDING MACHINE Filed July 23, 1924 5 Sheets-Sheet :5

7 31' 3. lNVENTOR March 24. 1925. 1,531,041

H. s. STINSON ADDING MACHINE INVENTOR March 24. 1925.

1,531,041 H. S. STINSON ADDING MACHINE Filed July 23, 1924 5 Sheets-Sheet 5 JNVENTOR ticularly described.

UNlTED STATES PATENT QFFICE.

HAROLD S. STINSON, ()F ST. LOUIS, MISSOURI.

ADDING MACHINE.

Application filed July 23, 1924. Serial No. 727,701.

T 0 all whom it may concern. Be it known that I, HAROLD S. S'rmsoma citizen of the United States, residing at St. Louis, in theState of Missouri, have invented certain new and useful Improvements in Adding Machines, of which the following is a specification, reference being bad to the accompanying drawings, forming a part hereof.

The invention relates to certain new and useful improvements in adding machines, and it consists substantially in such features of construction, arrangement, and combine tion of parts as will be hereinafter more par- The invention has reference more particularly to the class of adding machines such for instance as is shown and described in a patent issued to me, Patent No. 1,503,171, dated July 29, 199A, and the object of this invention is to increase the utility of the said invention without materially varying v the principles of operation.

,In the class of machines as illustrated in my former patent there are ten digit-keys numbered from 0 to 9? inclusive, which cooperate with one of a series often stops in a traveling carriage,'there being any sujtable number of series of stops depending on the calculating capacity of the machine. An escapement and motor device is provided tooperate efi'ectuall to move the carriage step by step on the epression of a key, and by the successive operations of the keys any desired number may be set up or introduced into the machine, after which a handle located at the right-hand side of the machine is pulled forward to cause segmental racks to be met l until arrested by the set stops, which pos. ons the printing-type in print in; line, and also determines the extent of rotation of the accumulating wheels.

y present invention does not comprehend in its scope any improvement in these Wellknown devices which exist in practically all addimg machines, but relates more particularly to the method of setting the stops.

The ten-key calculating machines on the market today are unquestionably more elli" cient for some classes of work than that type of machine having a plurality of series of keys, such for instance as the well-known type of machine one embodiment of which is illustrated and described in a patent issued to Vv'm. S. Burroughs, under date of Septemher 12, 1893, serial No. 504,963.

However, rior to the ten-key machine in other classes of work.

With this well-known fact in mind, I have constructed mechanism for combining the so-called ten-key calculating machine (by which, a number is set up or introduced into the machine by th successive operation of the keys) with that type of machine employing a number of series of keys.

It will lie-apparent that the means for accomplishing this result may vary Widely without departing from the spirit .of my invention, or the scope of my claims.

In the drawingsig. 1 is a plan view ofa machine embody inc a preferred form of my lIIJQBiJlOIl.

Fig. :2 is a detail vertical longitudinal section of the cylindrical revoluble stop-carriage and the key mechanism, taken on the line 2-2 of Figure 3, and looking in the direction of the arrows.

Fig. 3 is a detail end-elevation of the, cy lindricai stop-carriage, its escapement and connections, and the key mechanism, parts being broken away, and other parts being sectioned.

Fig. 4 is a detail plan-view of the cylindrical stop-carriage, showing the series of crank levers and parts which serve as intervening connections between the keys and the stops, parts being broken away, and others not shown in order not to be confusing.

Fig. 5 is a det il fragmentary end-vow of devices for car ng the numbered ca keys to operate cooperation with the stops,

Fig. 6 is a detail fragmentary plan-view of the ten-key mechanism and the stop mechanism, the casing being in section, and partially removed, to show the construction of above mechanisms.

Fig. 7 is a detail fragmentary side-elevation of keys 7.

I Y 716 present stop mechanism.

As in the class of machines, embodying the principles of operation 'set forth and shown in my former Letters-Patcirt referred to, so there in the. present 'instancd a revoluble cylindrical stop-carriage marked 12. This cylindrical stop-carriage is mounted to rethe latter machine isfarsupe- I volve upon any suitable bearings, such as the rollers 13, Figs. 4 and 6, and it extends in the present case longitudinally of the machine near the front end thereof, said rollers having suitable supports 13 which are secured to the frame of the machine.

Said rollers 13 engage circular rails or flanges 12 located adjacent the front and rearends of said cylindrical stop-carriage 12, Fi 4.

In tie present machine there are twentyfour rows, of ten stops each arranged longitiidinally, side by side, around the circumference of the said cylindrical-carriage 12, but I do not limit myself to such number or arrangement of stops 14, as the number may be increased or dimini shed without departing from the spirit of my invention or the scope of my claims.

Any well-known or preferred means may be em loyed to hold the stops 14 in a depresse position, in opposition to their springs 14, which encircle free stems of said stops. and bear against the inner faces of caps 15 which are allixed to said stops 14 and the outer periphery of said cylindrical stop-carriage, to normally retain the stops at the limit of their outward move-/ ment, in a mini-stop position.

In the present machine, I have provided each of said stops 14. with a laterally-projecting lug or car 17, which may also be termed a spline or fixed key, inasmuch as it slides in a keyway 17 extending laterally from each of the inner stop-bearings of said carriage 12, Fig. 2.

Said stop splines, studs, or cars on said stops 14 thus prevent turning of the latter in their bearings, and yet axial movement therein is permitted.

Each row of stops 14' is provided with a sliding latch-bar 18 which is mounted in suitable bearings in the rear annular rail or flange 12 and star-wheel or ratchet-Wheel 200 of said revolving stop-carriage 12, and in other parts of the latter further forward, Fi 2.

l iach of said latch-bars 18 has a series of cams or lateral arms carrying inclined fa es 19, which, upon the depression of a stop 14 (or a series of said stops) are engaged by the corresponding inwardly-moving spline or stud 17 of the depressed stop, and said latch bar is caused to move horizontally towards the front of the machine against the stress of the latch bar spring 20, out of the path of said spline or stud 17. until the latter has passed said cam '01 inclined face 19 of said latch-bar 18. wln'xreupon the latter will be quickly brought. back to its normal position by the power of its said spring 20, and the depressed stop will be thereby .held in a depressed position, as shown at the upper right-hand of Fig. 2.

As a result of this construction and operation, the depression of a second stop in the same row or series of stops, will move the said latch-bar lb thereof to an unlatching-position, and the first-locked stop 14 will be released, and will return to normal position by the power of it spring H. and the second stop will be locked in position, and so on.

Said latch-bar springs ii are, in the prcsent case, atttached to their respective latchbars 18 at their forward ends, :milwounected to the rear annular track on carriageflange 12' at their rear ends: butiof course any other arrangement of latch-bar springs will be acceptable. provided such springs accomplish the movement of said latch-bars in substantially the same way that is herein shown and described. i

The present 'ILUIIL/NZYZ'ILf] means.

The numbered stop caps 15, which were allixed' or directly connected to the stops 14 in my former patent, are indir ctly connected to said stops in this embot iment of the invention, their movement, however, is controlled by the stops in the same manner as in my former patent as will hereinafter become evident. Y The purpose of this construction is to bring the said numbered caps on a plane with one another and other objects which will hereinafter be apparent.

It should be understood. of course, that the, mechanism required for this purpose in the iachine illustrated would not necessarily )e needed in all embodiments of the invention. It being required only in cases where the stops are not on a plane with one another, that is on the same transverse line.

Any suitable'or preferred means may be employed to accomplish this feature.

The numbering means in this embodiment consists in detail of a number of series of numbered caps l5,ll0l(llli\ft(l' termed keys,

(nine keys to each series) which are afiixed.

to key-stems 201. These key-stems extend through slots in the top-plate 202 of the machine and arranged side by side, each keystem 201 having a slot 203 and cross-rods 20+ beneath the plate 202 pass through the said slots 203 of the said key-stems, which lie on the same transverse line. thus guiding said key-stems lmckward and forward movement. The said cross-rods are journaled in suitable brackets or bars 205, there being one of said bars on either side of each series 306 and 207 which are tlillYtd to the top of the machineby means of rivets .208. v

The top center series of key-stems 201 are arranged to operate the stops 14 which are in operative alignment with them, Fig. 2.

All other series of the said key-stems do not act directly on the stops 14 due to the fact that, they (the ke stems) form an anglc with said stops. eneath each key-stem 1s a crank-lever 209 which is loosely mount-- ed on a shaft 210, there being one of said shafts for each seriesof crank levers 209. The said shafts are pivotally mounted in orcuatc or curved members 211 and 212 locasted near either end of said carriage 12. The said arcuate or curved members have extensions to the side frames of the machine to which they are secured.

Suitable springs 213 are provided which have a tendency to hold the key-stems in a "depressed position, but are prevented from depressing said key-stems by the 3 rings 14 which encircle the stops 14 and w ich have n graatemtension than the springs 213. One end of the springs 213 is in this embodiment secured to the bars 205 by means of rivets 214 and the other end of same extends through rectangular notches 215 in the key-stems and are bent over to prevent slipping out of said notches. The cranklevers 209 are provided with fingers 216 which are adapted tocooperate with the etc 5 14.

he numbered caps being, thus arranged will not only serve the purpose of indicating the value of each respective stop, but will also enable the operator to use the numbored caps as keys to set up numbers in the machine independently of any other operating devi es. Thus, for instance, in intro- 4 ducing a number into the machine having a number of zeros, like the number $000,000. The key-boardabove would be more con venicnt to use. The operator would merely depress the nine key in the millions column. This will save him the trouble of striking the nine once and the zero key six times, which operations are necessary in ten-key machines. '1; his feature can also be used in correcting: errors made in setting up a number into the machine by the ten-key system.

For instance, if the number 987 was intended to be introduced or set up in the machine and the operator accidentally or erroneously sets up 887. The error may be corrected by depressing the nine key in the hundreds column, which will unlatch the 8 key and allow it to resume its normal position and the nine key will be held in a depressed position. 'lhis arrangement of the numbered caps or keys will serve many other purposes which will be apparent to those skilledin the art.

When the ten-lcey mechanism is used in introducing ntnibers into the machine, mechanism is provided to cause the mun bored caps or keys to operate in ('(M'!l)'.ltl tion with the stops 14 in order to visibly indicate the value of the number sct up in the ma hine.

The mechanism for accomplishing this adapted to engage with inclined, faces purpose could be constructed in various ways and I, therefore, do not restrict myself to the embodiment herein illustrated which consists of a series of two mating levers 217 and 218 rigidlyv securcd to either end of each shaft 210 between the members 211 and 212. Figs. 3 and'4. The outer endsof the levers 217 and 218 are connected together by means of longitudinal horizontal rods 219 which are rigidly secured to said levers. Mounted on the rearward projecting end of each shaft 210 is a pawl 220. The pawls 220 to the left of the top center row of keys 15 are rigidly secured to their respective shafts. right are loosely mounted on their respective shaft. Rigidly secured to the rear end of each shaft 210 to the right of the top center row of keys are levers 221. The

However, those to the pawtls 220 to the right are provided with fingers 222 levers 22-1.

Rigidly secured to the stop-carriage 12, near the rear end of same is a star-wheel or ratchet-wheel 200. The

which are adapted to operate the 22:; of said star-wheel or ratchet-wheel.

When a key of the ten-key system is depressed, as will hereinafter be apparent, a

stop 14 corresponding .to the value of Upon the an escape faces 223 of the ratchet wheel 200, which, 1

being rigidly secured to the sto 'i-carriage. will also move one step to the left, and

cause the shafts 210 to vibrate in their ournals in the nicmbcrs 211 and 212, Fig.

5. The rods 21.), being rigidly connected to the shafts 210 as licrcinbefore explained by the mat'ing'levcrs 217 and 218, will be caused to vibrate therewith, and in so doing will contact the shoulders 225 of the crank pawls 220' are 90 to be de-' step from right'to m0 levers 209 and projections 226 of the center top row of key-stems 201, and the said crank levers and key-stems will be held, thereby in an upward position during the i'novenicnt of the stop-carriage. The path o f the stops 14, obviously, will therefore be. unobstructed during the movement of said siop-carriagc 'hen, however, the carriage has reached the end of its movement i'or that step. the pawls 220 will have come to the end of the inclined faces 22? of said star-Wheel 200 and their movement. will be reversed from an upward to :1 downwarddirection under the action of the springs 21!}. The down ward movement of the keys 15 will then be restricted only by i the springs 1-1 as hereinthe value of, the depressed stop will drop,

or follow such stop and-visibly indicate to the operator the .value of the set stop after the key oft the ten-key system ivhich set it resumes normal position.

Upon the depression of another key of the tency system a stop corresponding in value to the key depressed will be set in the row of stops next'at'ljacent to the right of the row in which the lirst stop was set. Upon restoration of the depressed key, the said escapcment mechanism will permit the stop-carriage to move another step from right to left. Simultaneous with the movement of the stop-carriage after the restoration of the depressed key as explained above, the ends 224 of theawls 220 will ride the inclined faces 223 0 the ratchet-wheel 200 and they will be thereby raiscdby the movement of said ratchet-wheel with said carriage and cause the shafts 210 to which they are connected to vibrate in their journals in the members 211 and 21:2. The rods J19, bein connected, as previously explained, to the shafts 210 will be caused to vibrate therewith and in so doing will c\ ntact the shoulders 225 of the crank levers .109 and projections 2:26 of the center top row of key-stems E201, and any of the said crank levers or key-stems which may have been set will be raised thereby to resume their normal upward position against the action of their springs 213. Obviously the keys 15 being thus held in their normal upward position during the movement of the stop-carriage will other no interference with the movement of same. Upon the completion of the movement of the stop-carriage for that step, the pawls 220 will have again come to the end of the inclined faces 22:; of said star-wheel 2200 and their movement will again be reversed. The downward movement; of the keys 15 .will again only be restricted by the springs 14. The two rows of stops in which the lirst and second numbers were introduced will now (after the stop-carriage moves another step to the left us just described above) be in operative alignment. with the second and first rows. or series of keys of the tull-keyhoard respectfully, and since the downward movement of the said keys are restricted only by the springs l-l' the keys of the lirst and second numerical orders corresponding to, and bearing the numbers representing the value of, the depressed stops will drop, or follow such set stops and visibly indicate to the operator the value of the stops he has set. Thus, the set keys 15 will indicate to the operator the value of the stop or stops he has set. This operation of-raising the depressed keys 15 upon a movement, of the stop carriage after the restoration of a dc pressed key of the ten-key system, and a ftcr the completion of the movement of the carriage for that step, the automatic depression of keys 15 corresponding to the stops 1t which have been set in said carriage, is repeated at each operation of a key until the whole amount is introduced into the Inachine.

After an adding operation, it will be apparent that the depressed stops in returning to their normal position will automatically is a separate stop-link 22 for each numerical order.

All of the said stop-links, as in my former patent extend through the bore or interior of the said rotating cylindrical stop-carriage 12 to a point forward of the front end of said carriage. where said links are each provided with a slot 23. In the present case, all of said stop-links are arranged in .an arcuate or curved relation, in which their front portions are held or guided by a correspondingly-curved guide-rod or bar 2 which is suitably supported from the frame of the machine.

Any suitable slotted guiding-members 25 may be employed to prevent lateral movement of the said stop-links 22,1igs. 2 and 3. Said guiding members being supported in position by cross-bars or rods 26. which are shown rectangular in cross section to prevent rotation or rocking of said supports thereon.

liach stop-link 22 is provided on its upper edge with a vertical stop-lug or pin 27 to engage the stops 4 of its row of stops.

()ne of the present methods of projecting the stops into the path of the stop-lugs or pins 27 comprises a plurality of keys 7 that are numbered from "0" to 9 inclusive. and arranged in two banks or rows, Fig. 1 and other mechanism which will now be described. I

Said keys are carried by key-levers 30, which are fulcrmned on a key-lever shaft .28, which has its ends mounted in bearings carried by the opposite side-members 1 and 2 of the frame or casing, Fig. 6.

more

Each of the keys 7 is provided with any suitable spring to restore them to normal elevated position after a depression thereof. Each of the said key-levers 30, with. the ex cepti n of the key-lever, is in the present illustration, bent it an angle, townrd the right hand side of the machine, Fig. 6. at. a point a little beyond the fulc .nn shaft 98, that the rear ends oil of said ireydevers occupy a position at the right-band side of the said cylindrical stoprarriage l2 and as closely possible to the adjacent righbhand side-member 2 of the casing. This angular vation and they are form of said keylevers is made use of in the present case in order that said key-levers and their slop-depressing fingers, hereinafter presently desinibed. be located at the side of said cylindrical stop-carri: .p;c, and to avoid locating such i'nechanism on top of said carriage.

The inner angular portion of each keylt?\ll 30 has its rear end bent to a position at right'anglcs to i'he adjacent side member 2 of the machine casing, Fig. 6, so that said bent end will project inwardly toward said cylindrical stopcarriage 12. and a longitudinal slot 31, through which projects a pivot-pin. bolt or rivet 32, by means of which a stop depressing finger 33 is pivotally-connccted to said slotted bent portion at the inner end of each of said key levers, Fig. 3.

Said stop-depressing fingers 33 are somewhat of a bell-crank or L-shape in side elepivotally mounted on short shafts 187. which extend longitudinally of the machine, and are mounted on suitable supports shown at the right-hand of the said cylindrical stopcarriage 12.

The free arms of said stop-depressing fingers 33 have an inwardly projecting nose or hammer 34 at its free end, Which is brought into contact with one of the said stop-pin caps 15, and depresses same, upon the actuation of its key-lever 30, the value of the stop 14 depending, of course, upon the key depressed.

As the operator sets up an item on the key-hoard. by the successive operation of the keys. the said cylindrical stopcarriage i2 is revolved step by step in a direction the re verse of clockwise, or from right to left, one step for each numerical order in the item being set up, as each number-key is de pressed and restored.

The means for revolving the said carriage forms no part of my present invention and therefore is not illustrated.

The present escapemcnt-meohanism comprises a suitable OC2IPQITIEI1t-Wh89l 44, Figs. 2 and 3. having the well-known peripheral teeth with one radial face and one inclined face, and rigidly secured to the front end of the said cylindrical stop-carriage 12, to rotate with the latter.

Engaging the teeth of said escapementwheel 44 is a controbplatc 45 having a tooth 46 at its upper end, and mounted on a pivotsha it. or pivots 47, which sup ortingbrackets 48 carry, the latter rising rom the base-plate 4 of the machine, at a point beneat the front end of said cylindrical stopcarriege 12.

Pivoted 4:9 to the. front face of said control-plate -15 near the upper end of the latter, and vibrating therewith, is a dog 50, the lower portion of which is normally held against a pin or stop-stud 51 project ing from the front face of said control-plate, by a spring 59., the inner end of which is secured to the said dog at a point below its pivot 49, and the outer end of which spring is fixed to said control-plate.

At the lower end of the control-plate 45, and extending at an angle therefrom, f0rwurdiy and downwardly, Figs. 2 and 3, is a perforated ear or arm 45, to which is pivoted the lower end of an cscapementpitinan 5?, which extends upwardly and forwardly and has its upper end pivoted to an arm 54 rigidly mounted upon the key-lever shaft 28, Fig. 7, and held in normal position by it suitable spring.

Said keydever shaft 28 has a spline or key 56, which extends longitudinally thereof along all of the portion which is occupied by said key-levers 30, and said spline passes through a slot 57 in each of said key-levers 30, Fig. ll. so that upon the depression of a key said key-lever shaft 28 will be rocked a limited distance in its bearings, and the cscapement-pitmun 53 will rock said controlplate 45, and force its tooth 46 toward the ront, into engagement with the adjacent lowermost tooth 58 of said escapement wheel 44, and at the same time release said dog 50 from that. tooth, whereupon said dog-spring 52 will throw said dog into position indicated by dotted lines in Fig. 3 with its lower portion in contact with said stop-pin 51.

Upon restoration of the depressed key 7, said control-plate 45 will be moved in a reverse direction, back to its original position, with said tooth 46 out of engagement with the pi'eviously-atopped tooth 58 of Said escapement wheel 44, in which latter position it is shown in Fig. 3; and simultaneously said dog: 50 will be thrown into the pat of the next adjacent tooth of said escapemcnt-Whcel, and will stop it, and permit the latter to move one step (or one tooth) which is the distance required to bring the lower portion of said dog into contact with its ack-step pin or lug 59, that projects from the front face of said control plate, and this operation is repeated with each depression of a, key.

Upon completion of an adding operation it is necessary that the set-up number be eliminated from the cylindrical stop-oarriage 12, in order to allow another number to be set up in the machine.

The devices which are provided for accomplishing this feature are identical to those illustrated and described in my former patent hereinbefore referred to, and since it does not form a part of my present invention, it will not be explained. I desire, however, to show that a slight modification of the configuration of the T-shaped heads of the depressing levers 126 and l2S has been made for the purpose of enabling them to operate free of the member 212. Like in my former patent referred to the means provided for this purpose consists of three depressing-levers 126, 127 and 128, respectively, which are provided at their rear ends with T-shaped heads that engage the caps 15 of the nine adjacent zero-stops 14 whose caps are exposed at the top side and front end of said cylindrical-carriage 12. Two of said zero-stop depressing-levers 126 and 128, have cap-engaging heads at their rear ends which are curved to correspond substantially to the curvature of the periphery of said cylindrical-carriage 12, and these curved heads are set to move up and down at an angle in order that each of said heads may simultaneously engage and depress four of the adjacent zero-stop caps 15 of the series that need to be depressed.

The top. or centrally-located lever 127 has a short T-head inasmuch as it engages but a single zero-stop cap 15, and that is located at the extreme top of the series, between the two side-series of said caps, which are covered and depressed by the adjacent longer T-heads of the said levers 126 and 128.

The said T-heads of the levers 126 and 128 are in this embodiment of the invention each provided with three rectangular notches 227 on the rear side thereof, Figures 4 and 6. The portions 228 of said T-heads are adapted to occupy such position as to enable them to engage the four adjacent zero-caps 15 and also to pass through suitable slots 299 in said member 212. Of course, it is evident that any other modification of this arrangement which will prevent the member 212 from interfering with the operation of the levers 126 and 128 will be satisfactory.

The said three zero-stop depressing levers are arranged to simultaneously depress all of the said nine adjacent zero-stops 14 whose caps 15" are located at the top of said eylin drical-carriage 12, which will release all other depressed stops, in the same manner as illustrated and described in my hereinbefore referred to patent. This device, not forming a part of mv present invention, has not been explained in detail.

The principle and mode of operation of my invention will, I think, be entirely clear to those skilled in the art from the above description of the same, in the one preferred embodiment of the machine herein illus trated, but I would have it understood that my invention is not limited to the specific construction and arrangement shown. the various features being susceptible of use in adding-machines aml other calculatingmachines of ditlerent types.

I claim and desire to secure by Letters Patent:

1. In a calculating-machine, the combination of a plurality of operating k ys, stops operated b the successive operations of said keys to represent numbers, and a plurality oi series of keys capable of operating said stops, substantially as described and for the purposes set forth.

2. In a calculatingmachine, the combination of a number of series of stops which may be set to represent numbers, with two separate keyanechauisms for operating said stops, substantially as described and for the purposes set forth.

In a calculating-machine, the combination of a plurality of operating keys, a number of series of stops operated thereby, and keys whereby the stops in each series may be independently restored to their normal positions and the desired stops set.

4. In a calculating-machine, the combination of a plurality of operating keys, stops operated thereby, and a separate stop operating means connected to each stop, substantially as described.

In a calculating-machine, the combination of the stop-links 22. a series of stops adapted to be interposed into the path of each link and limit the movement of the same, manual means for setting said stops to represent numbers, and a separate means capable of operating said stops.

6. In a calculating-machine, the combination of a plurality of operating keys the successive operations of which will cause a number to be set up in the machine, and a number of series of operating keys which may be set to correct or change the number set up.

7. In a calculating-machine, the combination of ten digit-keys numbered from 0 to 9 inclusive, a number of series of stops arranged in rows in a traveling carriage and adapted to be operated thereby, intermediate connections between said keys and said carriage to cause the latter to move step by step upon the depression of a key, and a numbe of series of keys operatively connected to the. stops of said carriage.

8. In a calculatinganachine, the combination of a key plate, a number of series of vertically movable keys extending through said plate and arranged side by side, each key having a slot and cross-rods extending beneath the plate and passing through th slots of the said keys which lie in. the same transverse line, stops operable thereby, and ten digit-keys numbered from 0" to 9" inclusive operatively related to said stops.

9. In a calculating-machine, the combinatlon of a plurality of operating keys numbered from 0 to 9 inclusive, a number of series of movable stops arranged in nu'- merical orders and adapted to he set thereby to represent numbers, and a plurality of series of keys operatively connected to said stops.

It). In a calculating-machine. the combination of a suitable keyboard in which are arranged or set ten digit-keys numbered from 0" to 9 inclusive. a suitable stop mechanism having a number of series of stops adapted to be operated from said keyboard. and a second key-board in which are arranged or set a number of series of keys baring separate operative connections to said stops.

11. In a calculatin -machine. the combination of a suitable key-board in which are arranged or set a number of series of keys opcratively connected to a suitable stop mechanism. a second key-board .in which are arranged or set ten digit-keys numbered from 0" to 9 inclusive and having separate operative connections to said stop mechanism. and means for causing the first. mentioned keys to operate to visibly indicate the stops set by the second mentioned keys.

12. In a calculatingmiachine: the. ombination of a suitable key-board in which are arranged or set a number of series of keys. a movable stop-carriage, rows of stops in said carriage, a second key-board in which are arranged or set ten digit-keys numbered from 0 to 9 inclusive, and means for causing the first mentioned keys to operato to visibly indicate the stops set by the second mentioned keys, substantially as described.

13. In a calculating-machine. the com bination of a suitable key-board in which are arranged or set a number 0i series of keys, :1 revoluble cylindrical stop-carriage. rows of stops in said carriage, a second keyboard in which are arranged or set ten digitkeys numbered from O to 9' incltnrive. and means for causing the first mentioned keys to operate to visibly indicate the value of the sto s set by the second mentioned keys.

14. n a calculating-machine, the com-- bination of a plurality of operating keys. :1 revoluble group of stops adapted to be operated thereby, and a: number of series of keys operatively connected to said stops to enable the operator to change the setting of the stops operated by the first mentioned operating keys.

15. In a. calculating-machine, a keyboard comprising a plurality of keys. a carriage controlled by said keys. means holding said carriage. pins in said carriage. latch devices in said carriage holding: said pins when they are moved by said keys. and a number of series of keys opcratively conne ted to said pins. substantially as described.

16. In a calculatingymachinc. the conibination of a suitable stop mechanism, suit, able stops in said mcelmnism. latch dericcs for holding said stops when tbet are moved, a plurality of keys for se ting said stops to represent numbers, and a. number of series of keys opcratirely connected to said stops.

17. In in calculating machine. the cone bination of a plurality of ol'icratiugr key stops operated thereby. and means adapted to automatically operate after the setting of a stop to visibly indicate the value of the set stop.

18. In a calcui; llfi' machine. the combination of a suitable r-lt carriage, stops in said carriage. a ]rltii21lll of operating: keys for setting said stops. and means adap cd to automatically operate after tbs setting? oi a stop to visibly indicate the value of the set stop.

19. in a. calcnlatmgr-machine. the co nbinatinn with a plurality of keys J" a nourl-er of series of stops arrarn i in rows. .ueans for 'lbti lwf'li' plating: ea h scri under the control of said keys. and seinnratc keys whereby the stops in each series may be independently restored to their normal positions and the desired stops set.

20. In a. calcnlatingmiaehine. a suitable stop mechanism. stops in said mccl anistn. a plurality of keys for setting said stop cranlelevcrs 9.09 adapted to ride on said stops. key-stems it'i't adapted to ride on said crank-levers. and number bearing caps connected to said lrevstems. suliistantially as described.

21. In a caleubiting-machine, a suitable stop mechanism having a number of roe-s of stops. the number of rows of said sto icing g1 cute than the ralculating capacity of the machine. a plurality of lav-vs for setting: said stops. and a number f ries of kcrs oprrativelv connect d tr .1 t ps. the nun'zbcr of scrics of said keys being equal to the calculating capacity or the machine.

In a calculatimg-niacbinc. a suitable ivb'o stop met-halibut liming: a number of rows of stops. the number of rows of said stops being greater than the calculating capacity of the machine. a plurality of keys for setting sal steps. a number of series of keys opcratirely connected to said stops. the mun ber of series of said keys being equal to the calculating capacity of the machine, and means for causing: the latter keys to operate to visibly indicate the value of the stos operated by the former keys. substantial y as described.

lit)

23. In a calculating-machine, a key-board comprising a plurality of keys, a carriage controlled by said keys, rows of sto s in said carriage, the number of rows 0 said stops being greater than the calculating capacity of the machine, latch devices in said carriage holding said stops when they are moved by said keys, and a number of series of keys operatively connected to said stops, the number of series of said keys being greater than the calculating capacity of the machine.

24. In a calculating-machine, a suitable stop mechanism, stops in said mechanism, a plurality of keys for setting said stops, crank-levers 209 adapted to ride on said stops, key-stems 201 adapted to ride said crank-levers, number bearing caps con nected to said key-stems, and suitable springs 213 having a tendency to urge said crank-levers, key-stems, and number bearing ca s in a depressed position.

25. n a calculating-machine. a suitable stop carriage, stops in said carriage, a plurahty of keys for setting said sto s, intermediate connections between sai keys and said carriage to cause the latter to move step by step upon the depression of any of said keys, crank-levers tl adapted to ride on said stops, key-stems 201 adapted to ride said crank-levers, number bearing caps 17 connected to said key-stems, suitable springs 213 having a tendency to urge said cranklevers, key-stems, and number bearing caps in a depressed position, a ratchet-wheel 20) connected to said stop carriage, and intermediate connections between said ratchet wheel and said crank-levers to cause the latter, should any of them be in a depressed position, to be raised when the former moves with said stop-carriage upon the depression of any of said keys and to cause the said crank-levers to be released and to again (lepress themselves upon the completion of the movement of the said stop-carriage, substantially as described.

In testimony whereof, I have signed my name to,this specification in the presence of two subscribing Witnesses.

HAROLD S. STINSON.

\Vitnesses:

CLAUDE M. McConKLs, HARRY KRAUS. 

